The DSI synths have 128 programs per bank and their use of “bank” corresponds exactly with the MIDI use of the term. However, if you wanted to switch from a preset somewhere in sound banks 1-8 to a preset somewhere in sound banks 9-16 (or vice versa), you would need to send both the Bank Select message (MIDI CC 32) and the program Change message. If you are in Sub37 preset banks 1-8 and you want to switch to another preset anywhere in banks 1-8 then you only need to send a MIDI Program Change message from the Digitakt a MIDI Bank Select message would not be necessary. In MIDI terms, the Sub37 has two banks of 128 patches. With the Sub37 and bank changes, are you referring to the Moog use of the term “bank” by which the Sub37 divides its 256 sound locations into 16 banks of 16 patches? This usage of “bank” is different from the MIDI use of “bank”. I can’t be sure without knowing more about exactly what you were doing, which is why I asked whether you could share more details, but two things occur to me: Why did it change banks before I updated the O.S.
![blofeld midi cc list blofeld midi cc list](https://lasopaelectric873.weebly.com/uploads/1/2/5/6/125628658/105579734.jpg)
(The Moog and the DSI instruments have conventional Bank Select implementations, which the Digitakt (and Octatrack) do not currently address)…